Shrine gem - how to delete uploaded images from s3

Question

显然:remove_attachment插件可以完成检查和提交工作，但是如何从控制器中调用该方法呢？

Answer 1

All plugins which allow you to set up form fields ( remove_attachment , remote_url , data_uri , ...) work in a way that they add getters and setters to your models, so if you have a Photo model with "image" attachment, you can do photo.remove_image = true .

However, for removing attachments in Ruby code you don't need the remove_attachment plugin, you can just assign the attachment to nil :

photo.image = nil
# or
photo.update(image: nil)